I got several spools of the 12/0 European tying thread this morning and tied up a few midges and soft hackles (sz.20 and 22). If you are looking for a small diameter thread that is very strong ( in my opinion) for making small, neat heads then this thread will do just that. I got 8 total spools in 6 different colors. I've used Bennechi (sp?) thread over the past year and would say the H&H thread is very similar. Thanks for a great product Ron; can't wait to order more.